@VarunS2002 The data of the index is refreshed by the exchange on nseindia.in after about 3 minutes and 25 seconds. This time is not fixed, there is a difference of about 20-30 seconds.

I have a request from you to please make a software from python so that whenever the data of our Banknifty's option chain is updated after 3 minutes, the exchange will be saved on our computer locally and we can see it in Excel.

It would be something like this:
The exchange will refresh its option chain after every 3 minutes and whenever it refreshes, it will also give refresh time there. Now you will check that time after every second with your software and as soon as that time is updated, you will save the entire option price in the local database giving the entire strike price and wait for the next time update and We will save it again when the data comes.

You will save these data according to the time so that according to that time in Excel, the data can be seen and your own setup can be made.

There is no email address @VarunS2002 to talk to you.
This is a very good concept.